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38caf19333
Currently we have a number of tests that fail with -verify-machineinstrs. To detect this cases earlier we add the option to the testcases with the exception of tests that will currently fail with this option. PR 27456 keeps track of this failures. No code review, as discussed with Hal Finkel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277624 91177308-0d34-0410-b5e6-96231b3b80d8
36 lines
2.1 KiB
LLVM
36 lines
2.1 KiB
LLVM
; RUN: llc -verify-machineinstrs < %s
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; REQUIRES: default_triple
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; This used to cause a crash. A standard load is converted to a pre-increment
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; load. Later the pre-increment load is combined with a subsequent SRL to
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; produce a smaller load. This transform invalidly created a standard load
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; and propagated the produced value into uses of both produced values of the
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; pre-increment load. The result was a crash when attempting to process an
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; add with a token-chain operand.
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%struct.Info = type { i32, i32, i8*, i8*, i8*, [32 x i8*], i64, [32 x i64], i64, i64, i64, [32 x i64] }
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%struct.S1847 = type { [12 x i8], [4 x i8], [8 x i8], [4 x i8], [8 x i8], [2 x i8], i8, [4 x i64], i8, [3 x i8], [4 x i8], i8, i16, [4 x %struct.anon.76], i16, i8, i8* }
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%struct.anon.76 = type { i32 }
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@info = common global %struct.Info zeroinitializer, align 8
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@fails = common global i32 0, align 4
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@a1847 = external global [5 x %struct.S1847]
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define void @test1847() nounwind {
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entry:
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%j = alloca i32, align 4
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%0 = load i64, i64* getelementptr inbounds (%struct.Info, %struct.Info* @info, i32 0, i32 8), align 8
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%1 = load i32, i32* @fails, align 4
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%bf.load1 = load i96, i96* bitcast (%struct.S1847* getelementptr inbounds ([5 x %struct.S1847], [5 x %struct.S1847]* @a1847, i32 0, i64 2) to i96*), align 8
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%bf.clear2 = and i96 %bf.load1, 302231454903657293676543
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%bf.set3 = or i96 %bf.clear2, -38383394772764476296921088
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store i96 %bf.set3, i96* bitcast (%struct.S1847* getelementptr inbounds ([5 x %struct.S1847], [5 x %struct.S1847]* @a1847, i32 0, i64 2) to i96*), align 8
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%2 = load i32, i32* %j, align 4
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%3 = load i32, i32* %j, align 4
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%inc11 = add nsw i32 %3, 1
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store i32 %inc11, i32* %j, align 4
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%bf.load15 = load i96, i96* bitcast (%struct.S1847* getelementptr inbounds ([5 x %struct.S1847], [5 x %struct.S1847]* @a1847, i32 0, i64 2) to i96*), align 8
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%bf.clear16 = and i96 %bf.load15, -18446744069414584321
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%bf.set17 = or i96 %bf.clear16, 18446743532543672320
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store i96 %bf.set17, i96* bitcast (%struct.S1847* getelementptr inbounds ([5 x %struct.S1847], [5 x %struct.S1847]* @a1847, i32 0, i64 2) to i96*), align 8
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ret void
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}
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